[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 12.301797] audit: type=1400 audit(1514061983.049:6): avc: denied { map } for pid=3134 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-386-1,10.128.15.194' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 24.187831] audit: type=1400 audit(1514061994.935:7): avc: denied { map } for pid=3150 comm="syzkaller993051" path="/root/syzkaller993051824" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 24.194166] FAULT_INJECTION: forcing a failure. [ 24.194166] name failslab, interval 1, probability 0, space 0, times 1 [ 24.194177] CPU: 0 PID: 3150 Comm: syzkaller993051 Not tainted 4.15.0-rc4+ #145 [ 24.194180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.194182] Call Trace: [ 24.194193] dump_stack+0x194/0x257 [ 24.194201] ? arch_local_irq_restore+0x53/0x53 [ 24.194207] ? __might_sleep+0x95/0x190 [ 24.194215] ? kernfs_activate+0x87/0x250 [ 24.194228] should_fail+0x8c0/0xa40 [ 24.194236] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 24.194242] ? mutex_lock_io_nested+0x1900/0x1900 [ 24.194245] ? kernfs_add_one+0x50/0x450 [ 24.194253] ? check_noncircular+0x20/0x20 [ 24.194267] ? find_held_lock+0x35/0x1d0 [ 24.194277] ? __lock_is_held+0xb6/0x140 [ 24.194318] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 24.194323] ? lock_downgrade+0x980/0x980 [ 24.194331] ? rcu_note_context_switch+0x710/0x710 [ 24.194346] should_failslab+0xec/0x120 [ 24.194354] kmem_cache_alloc+0x47/0x760 [ 24.194359] ? ida_simple_remove+0x60/0x60 [ 24.194372] __kernfs_new_node+0xe2/0x570 [ 24.194379] ? kernfs_dop_revalidate+0x380/0x380 [ 24.194393] ? mutex_unlock+0xd/0x10 [ 24.194398] ? kernfs_activate+0x1b9/0x250 [ 24.194406] ? kernfs_walk_and_get_ns+0x300/0x300 [ 24.194414] kernfs_new_node+0x80/0xe0 [ 24.194423] __kernfs_create_file+0x4b/0x320 [ 24.194431] sysfs_add_file_mode_ns+0x220/0x510 [ 24.194443] internal_create_group+0x238/0x8d0 [ 24.194458] sysfs_create_group+0x1f/0x30 [ 24.194466] lo_ioctl+0xc5c/0x1b70 [ 24.194481] lo_compat_ioctl+0xab/0x140 [ 24.194488] ? lo_ioctl+0x1b70/0x1b70 [ 24.194495] compat_blkdev_ioctl+0x3ae/0x1840 [ 24.194503] ? bfq_create_group_hierarchy+0x110/0x110 [ 24.194512] ? security_file_ioctl+0x7d/0xb0 [ 24.194516] ? security_file_ioctl+0x89/0xb0 [ 24.194528] compat_SyS_ioctl+0x151/0x2a30 [ 24.194534] ? do_fast_syscall_32+0x156/0xf9d [ 24.194539] ? bfq_create_group_hierarchy+0x110/0x110 [ 24.194545] ? do_ioctl+0x60/0x60 [ 24.194551] do_fast_syscall_32+0x3ee/0xf9d [ 24.194563] ? do_int80_syscall_32+0x9d0/0x9d0 [ 24.194568] ? kasan_check_read+0x11/0x20 [ 24.194574] ? syscall_return_slowpath+0x550/0x550 [ 24.194581] ? SyS_rt_sigaction+0x94/0x1b0 [ 24.194587] ? SyS_sigprocmask+0x4b0/0x4b0 [ 24.194591] ? SyS_read+0x184/0x220 [ 24.194598] ? sysret32_from_system_call+0x5/0x3b [ 24.194607] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.194619] entry_SYSENTER_compat+0x54/0x63 [ 24.194623] RIP: 0023:0xf7fc3c79 [ 24.194625] RSP: 002b:00000000ff8cb41c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 24.194630] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000004c00 [ 24.194632] RDX: 0000000000000004 RSI: 00000000080da23c RDI: 00000000080f0f84 [ 24.194635] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 24.194637] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.194639] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.199513] FAULT_INJECTION: forcing a failure. [ 24.199513] name failslab, interval 1, probability 0, space 0, times 0 [ 24.199531] CPU: 0 PID: 3150 Comm: syzkaller993051 Not tainted 4.15.0-rc4+ #145 [ 24.199533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.199535] Call Trace: [ 24.199545] dump_stack+0x194/0x257 [ 24.199554] ? arch_local_irq_restore+0x53/0x53 [ 24.199570] should_fail+0x8c0/0xa40 [ 24.199578] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 24.199587] ? kmem_cache_alloc+0x12e/0x760 [ 24.199590] ? __anon_vma_prepare+0xbc/0x6b0 [ 24.199596] ? do_huge_pmd_anonymous_page+0x1127/0x1b00 [ 24.199600] ? __handle_mm_fault+0x1a0c/0x3ce0 [ 24.199604] ? handle_mm_fault+0x334/0x8d0 [ 24.199610] ? __do_page_fault+0x5c9/0xc90 [ 24.199614] ? do_page_fault+0xee/0x720 [ 24.199630] ? find_held_lock+0x35/0x1d0 [ 24.199640] ? __lock_is_held+0xb6/0x140 [ 24.199658] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 24.199667] ? rcu_note_context_switch+0x710/0x710 [ 24.199679] should_failslab+0xec/0x120 [ 24.199686] kmem_cache_alloc+0x47/0x760 [ 24.199700] __anon_vma_prepare+0x39d/0x6b0 [ 24.199707] ? anon_vma_fork+0x870/0x870 [ 24.199712] ? save_stack+0xa3/0xd0 [ 24.199719] ? print_irqtrace_events+0x270/0x270 [ 24.199724] ? print_irqtrace_events+0x270/0x270 [ 24.199727] ? mmap_region+0x7ee/0x15a0 [ 24.199731] ? do_mmap+0x6c0/0xe00 [ 24.199737] ? vm_mmap_pgoff+0x1de/0x280 [ 24.199740] ? SyS_mmap_pgoff+0x23b/0x5f0 [ 24.199746] ? do_fast_syscall_32+0x3ee/0xf9d [ 24.199751] ? entry_SYSENTER_compat+0x54/0x63 [ 24.199756] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.199764] do_huge_pmd_anonymous_page+0x1127/0x1b00 [ 24.199772] ? check_noncircular+0x20/0x20 [ 24.199779] ? __thp_get_unmapped_area+0x130/0x130 [ 24.199784] ? __lock_acquire+0x664/0x3e00 [ 24.199789] ? __lock_acquire+0x664/0x3e00 [ 24.199800] ? perf_event_fork+0x30/0x30 [ 24.199812] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.199816] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.199824] ? vma_wants_writenotify+0x51/0x3b0 [ 24.199834] ? check_noncircular+0x20/0x20 [ 24.199839] ? vma_wants_writenotify+0x3b0/0x3b0 [ 24.199847] ? vma_link+0xe9/0x170 [ 24.199857] ? mmap_region+0x52e/0x15a0 [ 24.199869] ? find_held_lock+0x35/0x1d0 [ 24.199875] ? check_noncircular+0x20/0x20 [ 24.199885] __handle_mm_fault+0x1a0c/0x3ce0 [ 24.199894] ? __pmd_alloc+0x4e0/0x4e0 [ 24.199906] ? find_held_lock+0x35/0x1d0 [ 24.199918] ? handle_mm_fault+0x248/0x8d0 [ 24.199925] ? lock_downgrade+0x980/0x980 [ 24.199951] handle_mm_fault+0x334/0x8d0 [ 24.199955] ? memset+0x31/0x40 [ 24.199960] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 24.199965] ? vmacache_find+0x5f/0x280 [ 24.199970] ? vmacache_update+0xfe/0x130 [ 24.199977] ? find_vma+0x30/0x150 [ 24.199985] __do_page_fault+0x5c9/0xc90 [ 24.199997] ? mm_fault_error+0x2c0/0x2c0 [ 24.200014] do_page_fault+0xee/0x720 [ 24.200021] ? __do_page_fault+0xc90/0xc90 [ 24.200027] ? kasan_check_read+0x11/0x20 [ 24.200033] ? syscall_return_slowpath+0x550/0x550 [ 24.200040] ? SyS_rt_sigaction+0x94/0x1b0 [ 24.200046] ? SyS_sigprocmask+0x4b0/0x4b0 [ 24.200051] ? SyS_read+0x184/0x220 [ 24.200056] ? sysret32_from_system_call+0x5/0x3b [ 24.200063] ? page_fault+0x36/0x60 [ 24.200068] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.200076] ? page_fault+0x36/0x60 [ 24.200083] page_fault+0x4c/0x60 [ 24.200086] RIP: 0023:0x8048b14 [ 24.200089] RSP: 002b:00000000ff8cb430 EFLAGS: 00010217 [ 24.200094] RAX: 0000000020000000 RBX: 0000000000000000 RCX: 0000000000fff000 [ 24.200097] RDX: 0000000000000003 RSI: 00000000ff8cb45c RDI: 00000000ff8cb45e [ 24.200099] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 24.200101] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 [ 24.200103] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.200283] syzkaller993051 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=0 [ 24.200289] syzkaller993051 cpuset=/ mems_allowed=0 [ 24.200325] CPU: 0 PID: 3150 Comm: syzkaller993051 Not tainted 4.15.0-rc4+ #145 [ 24.200327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.200329] Call Trace: [ 24.200334] dump_stack+0x194/0x257 [ 24.200341] ? arch_local_irq_restore+0x53/0x53 [ 24.200348] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.200359] dump_header+0x28c/0xe1e [ 24.200369] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.200377] ? pagefault_out_of_memory+0x152/0x152 [ 24.200385] ? print_irqtrace_events+0x270/0x270 [ 24.200394] ? __lock_acquire+0x664/0x3e00 [ 24.200402] ? check_noncircular+0x20/0x20 [ 24.200413] ? find_held_lock+0x35/0x1d0 [ 24.200424] ? check_noncircular+0x20/0x20 [ 24.200430] ? task_will_free_mem+0x252/0xaa0 [ 24.200439] ? print_irqtrace_events+0x270/0x270 [ 24.200453] ? ___ratelimit+0x30d/0x630 [ 24.200458] ? lock_downgrade+0x980/0x980 [ 24.200467] ? lock_release+0xa40/0xa40 [ 24.200476] ? mark_held_locks+0xaf/0x100 [ 24.200482] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.200489] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.200495] ? trace_hardirqs_on+0xd/0x10 [ 24.200502] ? ___ratelimit+0x95/0x630 [ 24.200509] ? idr_get_free_cmn+0xfd0/0xfd0 [ 24.200514] ? check_noncircular+0x20/0x20 [ 24.200517] ? find_held_lock+0x138/0x1d0 [ 24.200529] oom_kill_process+0x8b5/0x14a0 [ 24.200537] ? has_ns_capability_noaudit+0x163/0x2a0 [ 24.200543] ? lock_downgrade+0x980/0x980 [ 24.200553] ? oom_evaluate_task+0x480/0x480 [ 24.200568] ? security_capable_noaudit+0x8b/0xc0 [ 24.200577] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 24.200582] ? has_capability+0x30/0x30 [ 24.200586] ? do_raw_spin_trylock+0x190/0x190 [ 24.200592] ? check_noncircular+0x20/0x20 [ 24.200602] ? has_capability_noaudit+0x24/0x30 [ 24.200608] ? oom_badness+0xd1/0x980 [ 24.200611] ? lock_release+0xa40/0xa40 [ 24.200615] ? vma_link+0xe9/0x170 [ 24.200623] ? find_lock_task_mm+0x460/0x460 [ 24.200632] ? find_held_lock+0x35/0x1d0 [ 24.200643] ? out_of_memory+0xb3a/0x1220 [ 24.200648] ? lock_downgrade+0x980/0x980 [ 24.200656] ? lock_release+0xa40/0xa40 [ 24.200662] ? pagefault_out_of_memory+0x124/0x152 [ 24.200674] ? oom_evaluate_task+0x284/0x480 [ 24.200683] out_of_memory+0x86d/0x1220 [ 24.200696] ? oom_killer_disable+0x310/0x310 [ 24.200699] ? mutex_trylock+0x23a/0x2d0 [ 24.200707] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 24.200714] ? __do_page_fault+0x5f7/0xc90 [ 24.200720] ? lock_downgrade+0x980/0x980 [ 24.200727] pagefault_out_of_memory+0x135/0x152 [ 24.200732] ? out_of_memory+0x1220/0x1220 [ 24.200741] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 24.200745] ? vmacache_find+0x5f/0x280 [ 24.200750] ? vmacache_update+0xfe/0x130 [ 24.200756] mm_fault_error+0xd6/0x2c0 [ 24.200765] __do_page_fault+0xb4d/0xc90 [ 24.200777] ? mm_fault_error+0x2c0/0x2c0 [ 24.200791] do_page_fault+0xee/0x720 [ 24.200798] ? __do_page_fault+0xc90/0xc90 [ 24.200803] ? kasan_check_read+0x11/0x20 [ 24.200810] ? syscall_return_slowpath+0x550/0x550 [ 24.200816] ? SyS_rt_sigaction+0x94/0x1b0 [ 24.200822] ? SyS_sigprocmask+0x4b0/0x4b0 [ 24.200825] ? SyS_read+0x184/0x220 [ 24.200830] ? sysret32_from_system_call+0x5/0x3b [ 24.200837] ? page_fault+0x36/0x60 [ 24.200842] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.200850] ? page_fault+0x36/0x60 [ 24.200856] page_fault+0x4c/0x60 [ 24.200859] RIP: 0023:0x8048b14 [ 24.200861] RSP: 002b:00000000ff8cb430 EFLAGS: 00010217 [ 24.200865] RAX: 0000000020000000 RBX: 0000000000000000 RCX: 0000000000fff000 [ 24.200867] RDX: 0000000000000003 RSI: 00000000ff8cb45c RDI: 00000000ff8cb45e [ 24.200869] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 24.200872] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 [ 24.200874] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.200891] Mem-Info: [ 24.200902] active_anon:3715 inactive_anon:32 isolated_anon:0 [ 24.200902] active_file:3095 inactive_file:6042 isolated_file:0 [ 24.200902] unevictable:0 dirty:4070 writeback:0 unstable:0 [ 24.200902] slab_reclaimable:7139 slab_unreclaimable:84123 [ 24.200902] mapped:1844 shmem:39 pagetables:300 bounce:0 [ 24.200902] free:1521502 free_pcp:400 free_cma:0 [ 24.200909] Node 0 active_anon:14860kB inactive_anon:128kB active_file:12380kB inactive_file:24168kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:7376kB dirty:16280kB writeback:0kB shmem:156kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 24.200911] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 24.200921] lowmem_reserve[]: 0 2881 6394 6394 [ 24.200929] Node 0 DMA32 free:2952332kB min:30380kB low:37972kB high:45564kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2953024kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:692kB local_pcp:692kB free_cma:0kB [ 24.200938] lowmem_reserve[]: 0 0 3512 3512 [ 24.200945] Node 0 Normal free:3117768kB min:37036kB low:46292kB high:55548kB active_anon:14860kB inactive_anon:128kB active_file:12380kB inactive_file:24168kB unevictable:0kB writepending:16280kB present:4718592kB managed:3596988kB mlocked:0kB kernel_stack:2784kB pagetables:1200kB bounce:0kB free_pcp:908kB local_pcp:672kB free_cma:0kB [ 24.200955] lowmem_reserve[]: 0 0 0 0 [ 24.200962] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 24.200997] Node 0 DMA32: 3*4kB (M) 2*8kB (M) 3*16kB (M) 4*32kB (M) 3*64kB (M) 2*128kB (M) 4*256kB (M) 3*512kB (M) 2*1024kB (M) 1*2048kB (M) 719*4096kB (M) = 2952332kB [ 24.201053] Node 0 Normal: 54*4kB (UME) 130*8kB (UM) 102*16kB (UM) 122*32kB (UM) 78*64kB (UM) 35*128kB (UME) 9*256kB (UME) 3*512kB (UE) 11*1024kB (UME) 3*2048kB (UME) 752*4096kB (M) = 3117704kB [ 24.201091] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 24.201093] 9175 total pagecache pages [ 24.201098] 0 pages in swap cache [ 24.201101] Swap cache stats: add 0, delete 0, find 0/0 [ 24.201102] Free swap = 0kB [ 24.201104] Total swap = 0kB [ 24.201106] 1965979 pages RAM [ 24.201107] 0 pages HighMem/MovableOnly [ 24.201109] 324499 pages reserved [ 24.201127] Unreclaimable slab info: [ 24.201137] Name Used Total [ 24.201147] hashtab_node 118KB 119KB [ 24.201150] ebitmap_node 384KB 385KB [ 24.201154] avtab_node 1012KB 1013KB [ 24.201158] TIPC 1KB 7KB [ 24.201163] SCTPv6 2KB 4KB [ 24.201168] DCCPv6 2KB 7KB [ 24.201172] DCCP 2KB 6KB [ 24.201184] fib6_nodes 0KB 4KB [ 24.201187] ip6_dst_cache 5KB 11KB [ 24.201191] RAWv6 9KB 13KB [ 24.201195] UDPv6 14KB 14KB [ 24.201199] TCPv6 2KB 5KB [ 24.201206] sd_ext_cdb 0KB 3KB [ 24.201209] scsi_sense_cache 92KB 144KB [ 24.201212] virtio_scsi_cmd 16KB 16KB [ 24.201217] sgpool-128 8KB 8KB [ 24.201220] sgpool-64 4KB 6KB [ 24.201223] sgpool-32 47KB 55KB [ 24.201226] sgpool-16 18KB 26KB [ 24.201229] sgpool-8 189KB 221KB [ 24.201234] cfq_io_cq 15KB 19KB [ 24.201236] cfq_queue 24KB 27KB [ 24.201240] mqueue_inode_cache 1KB 7KB [ 24.201244] nfs_commit_data 3KB 7KB [ 24.201247] nfs_write_data 34KB 37KB [ 24.201252] jbd2_inode 1KB 3KB [ 24.201255] ext4_system_zone 0KB 3KB [ 24.201264] bio-1 1KB 3KB [ 24.201272] rpc_buffers 17KB 19KB [ 24.201275] rpc_tasks 2KB 3KB [ 24.201278] UNIX 1564KB 1564KB [ 24.201284] tcp_bind_bucket 0KB 4KB [ 24.201288] ip_fib_trie 0KB 3KB [ 24.201291] ip_fib_alias 0KB 3KB [ 24.201299] ip_dst_cache 7KB 7KB [ 24.201302] RAW 5KB 7KB [ 24.201305] UDP 31KB 31KB [ 24.201309] request_sock_TCP 0KB 3KB [ 24.201312] TCP 15KB 15KB [ 24.201315] hugetlbfs_inode_cache 1KB 7KB [ 24.201319] eventpoll_pwq 10KB 11KB [ 24.201322] eventpoll_epi 18KB 23KB [ 24.201324] inotify_inode_mark 4KB 7KB [ 24.201328] request_queue 76KB 164KB [ 24.201332] blkdev_ioc 21KB 27KB [ 24.201335] bio-0 245KB 281KB [ 24.201338] biovec-(1<<(21-12)) 330KB 412KB [ 24.201342] biovec-64 94KB 102KB [ 24.201345] biovec-16 10KB 15KB [ 24.201348] bio_integrity_payload 0KB 4KB [ 24.201351] khugepaged_mm_slot 1KB 3KB [ 24.201357] uid_cache 3KB 3KB [ 24.201360] dmaengine-unmap-2 0KB 3KB [ 24.201363] audit_buffer 0KB 3KB [ 24.201366] skbuff_fclone_cache 127KB 127KB [ 24.201369] skbuff_head_cache 1646KB 1646KB [ 24.201372] configfs_dir_cache 0KB 4KB [ 24.201375] file_lock_cache 150KB 150KB [ 24.201378] file_lock_ctx 1KB 3KB [ 24.201381] fsnotify_mark_connector 2KB 3KB [ 24.201385] shmem_inode_cache 887KB 887KB [ 24.201389] task_delay_info 298KB 407KB [ 24.201393] sigqueue 311KB 315KB [ 24.201396] kernfs_node_cache 1841KB 1842KB [ 24.201399] mnt_cache 14KB 20KB [ 24.201402] filp 8377KB 8377KB [ 24.201405] names_cache 117372KB 117372KB [ 24.201410] avc_node 38KB 39KB [ 24.201413] selinux_file_security 420KB 422KB [ 24.201416] selinux_inode_security 1896KB 1896KB [ 24.201418] key_jar 3KB 7KB [ 24.201421] nsproxy 0KB 3KB [ 24.201424] vm_area_struct 16864KB 16864KB [ 24.201427] mm_struct 3625KB 3629KB [ 24.201430] fs_cache 444KB 500KB [ 24.201433] files_cache 1385KB 1586KB [ 24.201436] signal_cache 2213KB 2558KB [ 24.201439] sighand_cache 224KB 284KB [ 24.201442] task_struct 9328KB 9340KB [ 24.201445] cred_jar 2204KB 2204KB [ 24.201448] anon_vma_chain 6886KB 6886KB [ 24.201451] anon_vma 210KB 273KB [ 24.201453] pid 219KB 292KB [ 24.201456] Acpi-Operand 126KB 174KB [ 24.201459] Acpi-ParseExt 0KB 7KB [ 24.201462] Acpi-Parse 8KB 19KB [ 24.201465] Acpi-State 10KB 23KB [ 24.201468] Acpi-Namespace 19KB 23KB [ 24.201471] numa_policy 0KB 3KB [ 24.201474] debug_objects_cache 423KB 427KB [ 24.201477] trace_event_file 144KB 147KB [ 24.201480] ftrace_event_field 254KB 255KB [ 24.201483] pool_workqueue 21KB 24KB [ 24.201487] page->ptl 2743KB 2743KB [ 24.201501] kmalloc-262144 1032KB 1032KB [ 24.201504] kmalloc-131072 650KB 650KB [ 24.201508] kmalloc-65536 264KB 264KB [ 24.201511] kmalloc-32768 462KB 462KB [ 24.201514] kmalloc-16384 148KB 148KB [ 24.201517] kmalloc-8192 363KB 363KB [ 24.201520] kmalloc-4096 9311KB 9350KB [ 24.201523] kmalloc-2048 2983KB 2983KB [ 24.201526] kmalloc-1024 3301KB 3307KB [ 24.201528] kmalloc-512 3105KB 3281KB [ 24.201531] kmalloc-256 1671KB 1912KB [ 24.201534] kmalloc-128 405KB 511KB [ 24.201537] kmalloc-96 363KB 412KB [ 24.201540] kmalloc-64 736KB 832KB [ 24.201542] kmalloc-32 1838KB 2185KB [ 24.201552] kmalloc-192 176KB 248KB [ 24.201555] kmem_cache 96KB 101KB [ 24.201557] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 24.201586] [ 1604] 0 1604 5385 643 86016 0 -1000 udevd [ 24.201601] [ 2857] 0 2857 2493 795 53248 0 0 dhclient [ 24.201607] [ 2994] 0 2994 14265 786 114688 0 0 rsyslogd [ 24.201612] [ 3037] 0 3037 4725 486 86016 0 0 cron [ 24.201618] [ 3068] 0 3068 3735 44 65536 0 0 mcstransd [ 24.201624] [ 3070] 0 3070 12927 1227 131072 0 0 restorecond [ 24.201630] [ 3096] 0 3096 12490 805 143360 0 -1000 sshd [ 24.201635] [ 3122] 0 3122 3694 478 77824 0 0 getty [ 24.201641] [ 3123] 0 3123 3694 472 81920 0 0 getty [ 24.201647] [ 3124] 0 3124 3694 470 73728 0 0 getty [ 24.201652] [ 3125] 0 3125 3694 461 77824 0 0 getty [ 24.201658] [ 3126] 0 3126 3694 446 77824 0 0 getty [ 24.201663] [ 3127] 0 3127 3694 464 73728 0 0 getty [ 24.201669] [ 3128] 0 3128 3649 439 81920 0 0 getty [ 24.201675] [ 3132] 0 3132 5681 885 86016 0 -1000 udevd [ 24.201681] [ 3133] 0 3133 5681 885 86016 0 -1000 udevd [ 24.201686] [ 3148] 0 3148 17821 1365 184320 0 0 sshd [ 24.201692] [ 3150] 0 3150 4336 1 28672 0 0 syzkaller993051 [ 24.201695] Out of memory: Kill process 3148 (sshd) score 0 or sacrifice child [ 24.201764] Killed process 3150 (syzkaller993051) total-vm:17344kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 24.292468] ------------[ cut here ]------------ [ 24.292477] sysfs group 'loop' not found for kobject 'loop0' [ 24.292541] WARNING: CPU: 0 PID: 3150 at fs/sysfs/group.c:237 sysfs_remove_group+0x15b/0x1b0 [ 24.292544] Kernel panic - not syncing: panic_on_warn set ... [ 24.292544] [ 24.292550] CPU: 0 PID: 3150 Comm: syzkaller993051 Not tainted 4.15.0-rc4+ #145 [ 24.292552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.292554] Call Trace: [ 24.292561] dump_stack+0x194/0x257 [ 24.292569] ? arch_local_irq_restore+0x53/0x53 [ 24.292579] ? vsnprintf+0x1ed/0x1900 [ 24.292589] panic+0x1e4/0x41c [ 24.292594] ? refcount_error_report+0x214/0x214 [ 24.292600] ? show_regs_print_info+0x18/0x18 [ 24.292610] ? __warn+0x1c1/0x200 [ 24.292618] ? sysfs_remove_group+0x15b/0x1b0 [ 24.292622] __warn+0x1dc/0x200 [ 24.292626] ? sysfs_remove_group+0x15b/0x1b0 [ 24.292633] report_bug+0x211/0x2d0 [ 24.292645] fixup_bug.part.11+0x37/0x80 [ 24.292651] do_error_trap+0x2d7/0x3e0 [ 24.292660] ? math_error+0x400/0x400 [ 24.292664] ? vprintk_emit+0x3ea/0x590 [ 24.292680] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.292692] do_invalid_op+0x1b/0x20 [ 24.292697] invalid_op+0x22/0x40 [ 24.292701] RIP: 0010:sysfs_remove_group+0x15b/0x1b0 [ 24.292704] RSP: 0018:ffff8801c8b37140 EFLAGS: 00010282 [ 24.292708] RAX: dffffc0000000008 RBX: ffffffff862ef6a0 RCX: ffffffff8159b35e [ 24.292711] RDX: 0000000000000000 RSI: 1ffff100394e0d18 RDI: 0000000000000293 [ 24.292714] RBP: ffff8801c8b37168 R08: 1ffff10039166dbb R09: 0000000000000000 [ 24.292716] R10: ffffffff874c80c0 R11: 0000000000000000 R12: 0000000000000000 [ 24.292718] R13: ffff8801d61115a0 R14: ffffffff856824e0 R15: ffff8801d6009528 [ 24.292731] ? vprintk_func+0x5e/0xc0 [ 24.292745] loop_clr_fd+0x4f2/0xb50 [ 24.292754] ? loop_attr_do_show_backing_file+0x1a0/0x1a0 [ 24.292763] ? lo_compat_ioctl+0x140/0x140 [ 24.292768] ? lo_compat_ioctl+0x140/0x140 [ 24.292773] lo_release+0xee/0x180 [ 24.292777] ? lo_compat_ioctl+0x140/0x140 [ 24.292782] __blkdev_put+0x62d/0x7f0 [ 24.292788] ? do_raw_spin_trylock+0x190/0x190 [ 24.292799] ? freeze_bdev+0x1e0/0x1e0 [ 24.292803] ? fcntl_setlk+0x10c0/0x10c0 [ 24.292807] ? fsnotify+0x7b3/0x1140 [ 24.292826] blkdev_put+0x85/0x4f0 [ 24.292833] ? blkdev_put+0x4f0/0x4f0 [ 24.292837] blkdev_close+0x8b/0xb0 [ 24.292844] __fput+0x327/0x7e0 [ 24.292854] ? fput+0x140/0x140 [ 24.292862] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 24.292866] ? _raw_spin_unlock_irq+0x27/0x70 [ 24.292876] ____fput+0x15/0x20 [ 24.292883] task_work_run+0x199/0x270 [ 24.292892] ? task_work_cancel+0x210/0x210 [ 24.292897] ? _raw_spin_unlock+0x22/0x30 [ 24.292902] ? switch_task_namespaces+0x87/0xc0 [ 24.292912] do_exit+0x9bb/0x1ad0 [ 24.292916] ? find_held_lock+0x35/0x1d0 [ 24.292926] ? mm_update_next_owner+0x930/0x930 [ 24.292933] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.292938] ? check_noncircular+0x20/0x20 [ 24.292955] ? check_noncircular+0x20/0x20 [ 24.292959] ? print_irqtrace_events+0x270/0x270 [ 24.292970] ? print_irqtrace_events+0x270/0x270 [ 24.292983] ? free_object+0x150/0x230 [ 24.292990] ? check_noncircular+0x20/0x20 [ 24.292996] ? lock_release+0xa40/0xa40 [ 24.293010] ? check_noncircular+0x20/0x20 [ 24.293015] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 24.293022] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.293030] ? find_held_lock+0x35/0x1d0 [ 24.293042] ? get_signal+0x7ae/0x16c0 [ 24.293048] ? lock_downgrade+0x980/0x980 [ 24.293060] do_group_exit+0x149/0x400 [ 24.293066] ? do_raw_spin_trylock+0x190/0x190 [ 24.293070] ? SyS_exit+0x30/0x30 [ 24.293075] ? _raw_spin_unlock_irq+0x27/0x70 [ 24.293081] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.293090] get_signal+0x73f/0x16c0 [ 24.293103] ? ptrace_notify+0x130/0x130 [ 24.293111] ? wait_for_completion+0x770/0x770 [ 24.293114] ? schedule_timeout_killable+0x75/0x90 [ 24.293121] ? out_of_memory+0x600/0x1220 [ 24.293134] ? oom_killer_disable+0x310/0x310 [ 24.293148] do_signal+0x94/0x1ee0 [ 24.293155] ? mutex_unlock+0xd/0x10 [ 24.293159] ? pagefault_out_of_memory+0xef/0x152 [ 24.293164] ? out_of_memory+0x1220/0x1220 [ 24.293170] ? setup_sigcontext+0x7d0/0x7d0 [ 24.293177] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 24.293181] ? vmacache_find+0x5f/0x280 [ 24.293188] ? vmacache_update+0xfe/0x130 [ 24.293196] ? mm_fault_error+0x92/0x2c0 [ 24.293205] ? __do_page_fault+0x3d6/0xc90 [ 24.293216] ? mm_fault_error+0x2c0/0x2c0 [ 24.293226] ? exit_to_usermode_loop+0x8c/0x310 [ 24.293237] exit_to_usermode_loop+0x214/0x310 [ 24.293240] ? __do_page_fault+0xc90/0xc90 [ 24.293247] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 24.293252] ? syscall_return_slowpath+0x550/0x550 [ 24.293258] ? SyS_rt_sigaction+0x94/0x1b0 [ 24.293268] prepare_exit_to_usermode+0x2e1/0x340 [ 24.293273] ? perf_trace_sys_enter+0xcb0/0xcb0 [ 24.293280] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.293287] ? page_fault+0x36/0x60 [ 24.293293] retint_user+0x8/0x18 [ 24.293296] RIP: 0023:0x8048b14 [ 24.293299] RSP: 002b:00000000ff8cb430 EFLAGS: 00010217 [ 24.293302] RAX: 0000000020000000 RBX: 0000000000000000 RCX: 0000000000fff000 [ 24.293305] RDX: 0000000000000003 RSI: 00000000ff8cb45c RDI: 00000000ff8cb45e [ 24.293307] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 24.293309] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000 [ 24.293311] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.297251] Dumping ftrace buffer: [ 24.297277] (ftrace buffer empty) [ 24.297280] Kernel Offset: disabled [ 26.796469] Rebooting in 86400 seconds..